}.also { expected ->
      assertThat(expected.message).isEqualTo("Code must be in range [1000,5000): 98724976")
    }
  }

  @Test fun closeReservedThrows() {
    assertFailsWith<IllegalArgumentException> {
      clientWriter.writeClose(1005, "Hello".encodeUtf8())
    }.also { expected ->
      assertThat(expected.message).isEqualTo("Code 1005 is reserved and may not be used.")

        String expected = "[testParam, [value1, value2]]";
        assertEquals(expected, param.toString());
    }

    public void test_toString_withNullName() {
        // Test toString with null name
        String[] values = { "value1" };
        RequestParameter param = new RequestParameter(null, values);

        String expected = "[null, [value1]]";

   *
   * @param elements expected additional contents of {@link #container}
   */
  protected final void expectAdded(E... elements) {
    List<E> expected = copyToList(getSampleElements());
    expected.addAll(asList(elements));
    expectContents(expected);
  }

  protected final void expectAdded(int index, E... elements) {

    try {
      decode(certificatePem)
      fail<Any>()
    } catch (expected: IllegalArgumentException) {
      assertThat(expected.message).isEqualTo("string does not include a private key")
    }
    try {
      decode(pkcs8Pem)
      fail<Any>()
    } catch (expected: IllegalArgumentException) {
      assertThat(expected.message).isEqualTo("string does not include a certificate")
    }
    try {

  protected final void expectReplacement(Entry<K, V> newEntry) {
    List<Entry<K, V>> expected = copyToList(getSampleElements());
    replaceValue(expected, newEntry);
    expectContents(expected);
  }

  private void replaceValue(List<Entry<K, V>> expected, Entry<K, V> newEntry) {
    for (ListIterator<Entry<K, V>> i = expected.listIterator(); i.hasNext(); ) {
      if (Helpers.equal(i.next().getKey(), newEntry.getKey())) {

    }.also { expected ->
      assertThat(expected.message)
        .isEqualTo("Unexpected char 0xe9 at 1 in header name: héader1")
    }
  }

  @Test fun builderRejectsUnicodeInHeaderValue() {
    assertFailsWith<IllegalArgumentException> {
      Headers.Builder().add("header1", "valué1")
    }.also { expected ->
      assertThat(expected.message)

        override fun source(): BufferedSource = Buffer().writeUtf8("hello")
      }
    assertFailsWith<IOException> {
      body.bytes()
    }.also { expected ->
      assertThat(expected.message).isEqualTo(
        "Content-Length (10) and stream length (5) disagree",
      )
    }
  }

  @Test
  fun bytesThrowsMoreThanIntMaxValue() {
    val body: ResponseBody =

      for (RoundingMode mode : ALL_SAFE_ROUNDING_MODES) {
        BigDecimal expected = new BigDecimal(d).setScale(0, mode);
        boolean isInBounds =
            expected.compareTo(MAX_INT_AS_BIG_DECIMAL) <= 0
                & expected.compareTo(MIN_INT_AS_BIG_DECIMAL) >= 0;

        try {
          assertEquals(expected.intValue(), DoubleMath.roundToInt(d, mode));
          assertTrue(isInBounds);

        assertThrows(
            UncheckedExecutionException.class, () -> getUnchecked(FAILED_FUTURE_OTHER_THROWABLE));
    assertThat(expected).hasCauseThat().isEqualTo(OTHER_THROWABLE);
  }

  public void testGetUnchecked_runtimeException() {
    RuntimeException expected =
        assertThrows(RuntimeException.class, () -> getUnchecked(RUNTIME_EXCEPTION_FUTURE));
    assertEquals(RUNTIME_EXCEPTION, expected);
  }

        assertThrows(
            UncheckedExecutionException.class, () -> getUnchecked(FAILED_FUTURE_OTHER_THROWABLE));
    assertThat(expected).hasCauseThat().isEqualTo(OTHER_THROWABLE);
  }

  public void testGetUnchecked_runtimeException() {
    RuntimeException expected =
        assertThrows(RuntimeException.class, () -> getUnchecked(RUNTIME_EXCEPTION_FUTURE));
    assertEquals(RUNTIME_EXCEPTION, expected);
  }